elainaclairee7405 elainaclairee7405

28-10-2022
Biology

Answered

the accumulation of potassium during short-duration exercise has what effect on the membrane making the muscle fiber less excitable and contributing to fatigue?

Answer :

RupaBera RupaBera

31-10-2022

Answer: The membrane is hyperpolarized by it.

What results in muscle fiber fatigue?

Fatigue happens when the amount of ATP available cannot keep up with the amount of ATP needed for exercise. The ATP/ADP ratio could be maintained by converting two molecules of ADP into one molecule of ATP and one molecule of AMP. AMP is then transformed into IMP and ammonia by the AMP-deaminase.

Which of the following increases as muscles wear out?

Acid lactate

Lactic acid is produced and accumulates in the muscle when there is a high energy demand, rapid changes in the energy requirement, and a lack of oxygen. During prolonged, intense activity, muscle pH falls to 6.4–6.6.

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